The Effectiveness and Efficacy of Using JUC Antimicrobial Spray for Controlling the Infection Transmission
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 15
- 试验地点
- 1
- 主要终点
- Change of Colony forming units on hands from pre-value (baseline) to post-value
研究概览
简要总结
JUC is a commercially available wound care spray. It is evaluated for the efficacy when using as a hygienic hand rub following the protocol described in the European standard EN 1500:1997 "Chemical disinfectants and antiseptics - Hygienic handrub - Test method and requirement (phase 2/step 2)". A crossover study to compare the JUC solution with 60% (v/v) propan-2-ol by using Escherichia coli K12 NCTC strain 10538 as test organism.
详细描述
Before the intervention, the bactericidal activity of JUC was validated in accordance with the prEN 12054. A total of 15 volunteers were recruited, hands were washed immediately prior to the intervention. Then, both hands of each volunteer were immersed into a contamination fluid of E. coli. Then, hand rub was performed with JUC or alcohol. Culture samples were collected before and after the hand rub by rubbing the fingertips and thumb tips of each hand ont he base of a Petri dish containing appropriate medium. The culture inoculation, incubation, appropriate dilutions, and colony count were performed.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Crossover
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •healthy and absence of significant illness
排除标准
- •Visible wounds on hands
研究组 & 干预措施
Control
Following standard one-minute handwashing, both hands were immersed up to the mid-metacarpals for 5 seconds into a contamination fluid containing E. coli. Handrubs were performed by using 60% propan-2-ol into the cupped hands and rub vigorously for 30 seconds, the procedure was completed by a 5 seconds rinse of the fingers under running tap water and excess water was shaken off.
干预措施: propan-2-ol (Drug)
JUC solution
Following standard one-minute handwashing, both hands were immersed up to the mid-metacarpals for 5 seconds into a contamination fluid containing E. coli. Handrubs were performed by pouring 1.5 ml of JUC into the cupped hands and rub vigorously for 30 seconds, the procedure was completed by a 5 seconds rinse of the fingers under running tap water and excess water was shaken off.
干预措施: JUC solution (Drug)
结局指标
主要结局
Change of Colony forming units on hands from pre-value (baseline) to post-value
时间窗: Pre-value (baseline) as 0 minutes: at the time after handwashing and before application of JUC or alcohol; Post-value at 5 minutes after the baseline: as after hand contamination, application of JUC or alcohol and drying of hands
Pre-value and post-value were collected by rubbing the fingertips and thumb tips of each hand for 1 minute on the base of a Petri dish containing medium. Then the samples with appropriate dilutions were plated onto agar plates for incubation, and colony forming units of the plates were counted.
次要结局
- Change of colony forming units on hands from baseline to 8 hours after hand rubbing with JUC(Pre-value (baseline) at 0 hour: at the first time after applicaiton of JUC and challenged by the bacteria; Post-values measured at each hour (1,2,3,4,5,6,7 and 8 hours) after the initial application of JUC and bacterial challenge at every hour)
研究者
John Yuen
Assistant Professor
The Hong Kong Polytechnic University